Ratio & Proportion, Alligation or Mixture

The present age of john and marry are in the ratio of 6 : 4. Five years ago their ages were ratio of 5 : 3. How old is john now?

In a business A and C invested amounts in the ratio 2 : 1 whereas A and B invested amounts in the ratio 3 : 2 . If their annual profit be Tk. 157300, then B's share in the profit is -

An employer pays 3 workers X, Y and Z a total of TK. 36600 a week. X is paid 125% of the amount Y is paid and 80% of the amount Z is paid. How much does X make a week?

Two numbers are in the ratio 3:7. If 6 be added to each of them, then they are in the ratio 5:9. Find the numbers?

1 year ago the ratio between A's and B' s salary was 3 : 4. Ratios of their individual salaries between last year's and this year's salaries are 4 : 5 & 2 : 3 respectively. At present the total of their salary is TK. 4160. How much is the salary of A now?

A dog takes 4 leaps for every 5 leaps of a hare but 3 leaps of the dog is equal to 4 leaps of the hare. Compare their speeds:

The ratio of two numbers is 7:4. If 8 is added to both the numbers ratio becomes 13:8. What is the smaller number?

Two men, A and B, run a 4 km race on a circular course of 1/4 km. If their speeds are in the ratio of 5:4. How often does the winner pass the other?

If the income of A is 10% more than that of B and the income of B is 20% less than that of C, then the income of A, B and C respectively are in the ratio

A cricket team has won 40 games out of 60 played. It has 32 more games to play. How many of these must the team win to make it record 70% win for the season?

A container holds 4 quarts of chemicals and 4 quarts of water. How many quarts of water must be added to the container to create a mixture that is 3 parts chemical to 5 parts water by volume?

Fahim's collection contains US, Bangladeshi and British stamps. If the ration of US to Bangladeshi stamps is 5 : 2 and the ration of Bangladeshi of British stamps is 5 : 1, what is the ration of US to British stamps?

A jar contains white, red and green marbles in the ratios 2 : 3 : 5. Six more green marbles are added to the jars and the ratio becomes 2 : 3 : 7. How many white marbles are there in the jar?

Some money is divided amongst three workers A, B and C such that 5 times A's share is equal to 12 times B's share which is equal to 6 times C's share . The ratio between the shares of A,B and C is? 

A right triangle has sides in the ratio of 5:12:13. What is the measure of the smallest angle in the triangle, in degrees?

The present age of three persons are in the proportion of 4 : 7 : 9. Eight years ago, the sum of their ages was 56 years. The present age of the eldest person is -

A and B start a business with initial investment in the ratio 12 : 11 and their annual profits were in the ratio 4 : 1. If A invested the money for 11 months B invested the money for –

If Arif work alone he will take 20 more hours to complete a task than if he works with Babu to complete the task. If Babu work alone, he will take 5 more hours to complete the task than if he works with Arif to complete the task. What is the ratio of the time taken by Arif to than taken by Babu if each of them works alone to complete the task.

A cement mixture is composed of 3 elements. By weight, 1/3 of the mixture is sand, 3/5 is water and the remaining 12 pounds of the mixture is gravel. What is the weight of the entire mixture in pounds?

If the ratio of numbers is 3: 4 and their least common multiple is 60, then the numbers are-